Glycogen-rich GlyTs and uNK cells were identified by PAS staining in E14.5 placentas from mice fed the RC.

(A, B) uNK cells in the MG. (C, D) GlyTs surrounding the maternal blood canals in the decidua basalis region. (E, F) GlyTs in the junctional zone/decidua basalis region. (G, H) Pre-GlyT islets in the labyrinth. Junctional zone regions and cell islets in the labyrinth region are delineated by dashed green lines. Green triangles show GlyTs, SpTs, or uNK cells and the yellow asterisk denotes a giant cell (GC). n of 5 placentas from 3 pregnancies evaluated for each staining. Images on the left and right panels are shown at 200x and 400x magnification, respectively.